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Benefits of wildlife-based land uses on private lands in Namibia and limitations affecting their development

Journal Articles & Books
December, 2013
Namibia
Africa

Legislative changes during the 1960s–1970s granted user rights over wildlife to landowners in southern Africa, resulting in a shift from livestock farming to wildlife-based land uses. Few comprehensive assessments of such land uses on private land in southern Africa have been conducted and the associated benefits are not always acknowledged by politicians. Nonetheless, wildlife-based land uses are growing in prevalence on private land. In Namibia wildlife-based land use occurs over c. 287,000 km².

Is Proactive Adaptation to Climate Change Necessary in Grazed Rangelands?

Journal Articles & Books
December, 2012

In this article we test the notion that adaptation to climate change in grazed rangelands requires little more effort than current approaches to risk management because the inherent climate variability that characterizes rangelands provides a management environment that is preadapted to climate change. We also examine the alternative hypothesis that rangeland ecosystems and the people they support are highly vulnerable to climate change.

Developing a complementary framework for urban ecology

Journal Articles & Books
December, 2013

Cities are characterized by dynamic interactions between socio-economic and biophysical forces. Currently more than half of the global population reside in cities which influence the global biogeochemical cycles and climate change, substantially exacerbating pressures on urban pollution, water quality and food security, as well as operating costs for infrastructure development. Goods and services such as aesthetic values, water purification, nutrient recycling, and biological diversity, that urban ecosystems generate for the society, are critical to sustain.

Fire emissions estimates in Siberia: evaluation of uncertainties in area burned, land cover, and fuel consumption

Journal Articles & Books
December, 2012
Russia

Boreal forests constitute the world's largest terrestrial carbon pools. The main natural disturbance in these forests is wildfire, which modifies the carbon budget and atmosphere, directly and indirectly. Wildfire emissions in Russia contribute substantially to the global carbon cycle and have potentially important feedbacks to changing climate. Published estimates of carbon emissions from fires in Russian boreal forests vary greatly depending on the methods and data sets used. We examined various fire and vegetation products used to estimate wildfire emissions for Siberia.

Quantification of aboveground rangeland productivity and anthropogenic degradation on the Arabian Peninsula using Landsat imagery and field inventory data

Journal Articles & Books
December, 2011
Oman

The productivity of semi-arid rangelands on the Arabian Peninsula is spatially and temporally highly variable, and increasing grazing pressure as well as the likely effects of climatic change further threatens vegetation resources. Using the Al Jabal al Akhdar mountains in northern Oman as an example, our objectives were to analyse the availability and spatial distribution of aboveground net primary production (ANPP) and the extent and causes of vegetation changes during the last decades with a remote sensing approach.

decision support tool for sustainable planning of urban water systems: Presenting the Dynamic Urban Water Simulation Model

Journal Articles & Books
December, 2013
Ireland

Population growth, urbanisation and climate change represent significant pressures on urban water resources, requiring water managers to consider a wider array of management options that account for economic, social and environmental factors.

Assessing the impacts of economic and climate changes on land-use in mountain regions: A spatial dynamic modeling approach

Journal Articles & Books
December, 2012
Switzerland

Future land-use changes are predicted to be influenced by both climate-driven environmental changes and concomitant changes in local economic conditions. Assessing the impact of climate change on ecosystems, and the goods and services that they provide, therefore requires an understanding of the dynamic link between land-cover, ecosystem services and economic-driven land-use decisions. The economic land allocation model (ALUAM) simulates the competition between forest and a range of agricultural land-uses to estimate land-use conversions in a spatially explicit manner at high resolution.

importance of land cover change across urban–rural typologies for climate modeling

Journal Articles & Books
December, 2013

Land cover changes affect local surface energy balances by changing the amount of solar energy reflected, the magnitude and duration over which absorbed energy is released as heat, and the amount of energy that is diverted to non-heating fluxes through evaporation. However, such local influences often are only crudely included in climate modeling exercises, if at all. A better understanding of local land conversion dynamics can serve to inform inputs for climate models and increase the role for land use planning in climate management policy.

Building Climate Resilience in the Blue Nile/Abay Highlands: A Role for Earth System Sciences

Journal Articles & Books
January, 2012
Ethiopia

The Blue Nile (Abay) Highlands of Ethiopia are characterized by significant interannual climate variability, complex topography and associated local climate contrasts, erosive rains and erodible soils, and intense land pressure due to an increasing population and an economy that is almost entirely dependent on smallholder, low-input agriculture. As a result, these highland zones are highly vulnerable to negative impacts of climate variability.

Comprehensive evaluation of the climate-change implications of shifting land use between forest and grassland: New Zealand as a case study

Journal Articles & Books
December, 2012
New Zealand

The transition of land between forest and grassland has important implications for greenhouse gas emissions and removals. In this paper, we use New Zealand as a case study to comprehensively assess, compare and quantify the net climate change impact of shifting land use between temperate forest and grassland. Forests store large amounts of carbon in their biomass, whereas grasslands contain relatively little biomass carbon. These biomass changes tend to dominate the carbon balance under land-use change.

technique for quantifying groundwater pumping and land subsidence using a nonlinear stochastic poroelastic model

Journal Articles & Books
December, 2015
Taiwan

Subsidence in Yunlin County, Taiwan, is serious and continuous. The Taiwan High Speed Rail (THSR) route crosses the subsidence area and might be affected by differential settlements. It is important to evaluate the pumping quantity for water resource management and to predict the subsidence for land resource management to mitigate the subsidence problem in Taiwan.

Temporal-spatial variability of desertification in an agro-pastoral transitional zone of northern Shaanxi Province, China

Journal Articles & Books
December, 2012
China

Desertification has been widely treated as one of the major environmental hazards in the world by scientific communities and the public. Monitoring the dynamics and causes of desertification is essential to provide important instruction for desertification control strategies and rational planning of land use in arid and semi-arid areas.